Possible breakage of project shortcut method?

[proycon]

Reported by @dietervu when invoking a webservice like ucto from the switchboard:

https://webservices.cls.ru.nl/ucto/?project=new&untokinput_url=https%253A%252F%252Fbeta-switchboard.clarin.eu%252Fapi%252Fstorage%252F09e1d219-2d04-41ec-8531-9ca9a41118f3&untokinput_language=nld

[proycon]

Ok, it looks like the shortcut method itself is not broken, but it fails to retrieve the remote file, and the resulting error is rather ambiguous:

[10/Nov/2020 13:38:34 DEBUG] Setting parameter 'language' to: 'nld' (from postdata)
[10/Nov/2020 13:38:34 DEBUG] Determined input filename: 1-00bbdbc3e1de0238f6fea6ceeaa4953418.txt
[10/Nov/2020 13:38:34 DEBUG] (Start file transfer: /data2/dev/ucto.clam/projects/anonymous/P00536bfa634f3a41051f78474ad75306db/input/1-00bbdbc3e1de0238f6fea6ceeaa4953418.txt )
[10/Nov/2020 13:38:34 DEBUG] (Receiving data via url)
127.0.0.1 - - [10/Nov/2020 13:38:34] "GET /?project=new&untokinput_url=https%253A%252F%252Fbeta-switchboard.clarin.eu%252Fapi%252Fstorage%252F09e1d219-2d04-41ec-8531-9ca9a41118f3&untokinput_language=nld HTTP/1.1" 404 -

I'll implement a cleaner error message.